Automatic weather-strip.



No. 760,254. PATENTED MAY 17, 1904,

L. ROTTLBR.

AUTOMATIC WEATHER STRIP.

APPLIUA'rIoN FILED rma. o. 190s.

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PATENTED MAY 17, 1904.

L. ROT'ILEB.. AUTOMATIG WEATHER S'I15LI]?. y

APPLIOATION FILED FEB. 9. 1903.

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' position in a manner similar to that of com- .the United States,residing at St. Louis, State Aof Missouri, have invented certain new and.useful Improvements in AutomaticrWeatherl Strips, of which thefollowing is a specifica- .drawings, forming a part hereof.

strips; and it consists of the novel construction, combination, andarrangement of parts UNITED STATES Patented May 17', 1904.

LEO ROTTLER, OF ST. LOUIS, MISSOURI.

AUTOMATIC WEATHER-STRIP.

SPECIFICATION forming part of Letters Patent N O. 760,254, dated May 1?,1904.`

Application filed February 9, 1903.

To all wlw/it zit may concern:

Be it known that I, Luo RoTTLER, a citizen of tion containing a full,clear, and exact description, reference being had to the accompanying Myinvention relates to automatic weatherhereinafter shown, described, andclaimed.

The object of myinvention is to provide an improved automaticweather-strip which shall be economical in cost and reliable inoperation.

Figure 1 is a sectional front elevation of a portion of a door having myinvention applied thereto. Fig. 2 is a view of a portion of onel edge ofa door and a carpet-strip enlarged. Fig. 3 is a sectional plan view ofthe door and its frame. Fig. 4 is a section on the line 4 4 of Fig. 1,but with the parts enlarged. Fig. 5 is a detail perspective view of aportion of the strip-holder. Fig. 6 is a detail view in perspective of aportion of the door-frame having a metallic plate applied thereto. Fig.7 is a view of the opposite side of the doorframe having a cam-plateapplied thereto.

1 indicates the door, which is provided in each edge at the bottom witha mortise 2, in which is located a metallic casing 3, containing themain operative parts of the device. Said casing 3 is provided withperforated flanges 4, by means of which it is secured in monmortise-locks. Within the casing 3 is pivotally mounted upon the pin 5 abell-crank lever 6, having perforated arms 7 and 8.

9 indicates a perforated bracket projecting from the interior of thesaid casing 3 with its perforation in horizontal alinement with theperforation in the arm 7 of said bell-crank 1ever, and mounted in 4saidalined perfor-ations is a spring-pressed bolt 10. The outer end of thebolt 10 projects through an aperture 11 in the outer edge of saidcasing. Collars or projections 12 and 13 are formed upon said Serial No.142,678. (N0 model-l bolt, one upon either side of said perforated arm7, so that whenever said bolt is moved longitudinally a correspondingmovement will be given said bell-crank lever.

14 indicates another spring-pressed bolt mounted vertically within saidcasing, with its upper portion supported by a perforated bracket 15 andits lower portion provided with a rectangular shank 16. Fixed upon saidvertical bolt 14 immediately beneath said perforated bracket 15is ashoulder or projection 17. Said vertical bolt is mounted in theperforation of the arm 8, and a coil-spring 18 is mounted upon said boltbetween said arm 8 and the said shank 16. Said shank is mounted in therectangular opening 19, formed in the lower edge of said casing. Thelower end of said shank is provided with integral clamping-arms 20,which support the metallic U.n

Vshaped strip-holder 21.

A coil-spring 22 is mounted upon the bolt 10 between the perforatedbracket 9 and the collar or projection 13.

23 indicates a strip of material, preferably rubber, which is forciblyclamped between the jaws 24 of the strip-holder 21 and held in positionthereby.

25 indicates a metal plate which is set into the edge of the door-frame26 and lies Hush therewith and is held in place by means of screws 27.

28 indicates a cam-plate which is set into the door-frame on theopposite side from the plate 25 and is provided at one end with anintegral inclined surface 29. Said plates are preferably set near thebottom of the door-frame, so as to be contacted by the projecting bolts10 when the door is closed.

30 indicates the usual carpet strip beneath the door.

The operation is as follows: The spring 22 of the bolts 1() normallyurges said bolts outwardly, so that they project, as shown in Fig. 1.The spring 18 ofthe bolts 14 normally urges the perforated arms 8upwardly, so that said spring 18 will act as a cushion for the said armwhen the same is moved downwardly. When the door is opened, as shown inFig. 3, the bolts 10 do not contact with the plates 25 and 28; but whenthe said door is closed the bolt l0 at the hinged edge of said doorcomes in contact with the plate 25 and is urged inwardly against thepower of the spring 22, and as the inward movement of the door continuesthe bolt lOat the free edge of the door will come in contact with theinclined surface 29 and be thereby forced inwardly. The described inwardmovement of said bolts l() will cause the arm 8 of the bell-crank leverto be forced downwardly, thereby urging the spring 18 into contact withthe shank 16 and forcing downwardly the strip-holder and the stripcarried thereby. This downward movement will continue until the strip 23is forced into intimateA contact with the carpet strip 30, and then thedownward movement of the strip will of course cease; but the spring willact as a cushion to permit a slight further downward movement of thesaid arm 8, and thereby exert a continuous yielding pressure upon thesaid strip until the same is released by opening the door. In thismanner the said strip 23 will be operated equally at each edge' of thedoor by means of the separate mechanism located thereat, and suchmovement will be certain for the reason that power is applied at bothends of the weather-strip.

Upon reopening the door the bolts 10 will be released, and their springs22 will causey them to assume their normal positions and carry with themthe bolts 14 and the stripholder at the lower end thereof, and the strip-23 will thereby be elevated out of contact with the carpet strip 80, sothat said strip 23 may freely move in a plane above said carpet stripwithout touching the same.

I claim# Y l. The improved automatic weather-strip, comprising a stripof rubber or other analogous material adapted to be mounted at the loweredge of a door, the U-shapcd strip-holder 21 having opposite integralclamping-jaws, and spring-pressed bolts mounted in opposite edges ofsaid door and connected to said stripholder so that the same will beelevated equally at both ends when the .door is opened, and forceddownwardly when the said door is closed, substantially as specified.

2. The improved automatic weather-strip, comprising a strip of rubberorother analogous material adapted to be mounted at the lower edge ofthe door, the U-shaped stripholder 21 havingopposite integralclampingjaws; spring-pressed bolts and bell-crank levers mounted inopposite edges of said door and connected to said strip-holder so thatthe same will be elevated equally at bothends when the door is opened,and forced downwardly when the said door is closed; and mortise-casingsin which said bolts and bell-crank levers are mounted, substantially asspecified.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses. f

LEO ROTTLER.

Witnesses v ALFRED A. EIoKs, M. D. IRIoN.

